A 15-year-old was arrested early Sunday morning after he threatened to cut off his older brother’s genitals in an argument over a video game, police say.

The incident happened at around 1:20 a.m. on Sunday in the 3800 block of East Ross Parkway The 15-year-old allegedly pulled a knife, held it to his 20-year-old brother’s throat and made the threat, said Wichita police Sgt. Bart Brunscheen.

The brother wasn’t injured.

Police do not know which video game prompted the fight.

The 15-year-old was arrested and booked for aggravated assault and criminal threats. The parents were reported to be home during the incident.

In a separate case, the 15-year-old is listed as an active runaway, Brunscheen said.